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  2. Johannes Gutenberg-Universität Mainz
  3. DFG-491381577-H
Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-9008
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dc.contributor.authorNardoni, Chiara-
dc.contributor.authorDe Siena, Luca-
dc.contributor.authorMagrini, Fabrizio-
dc.contributor.authorCammarano, Fabio-
dc.contributor.authorMaeda, Takuto-
dc.contributor.authorMattei, Elisabetta-
dc.date.accessioned2023-04-24T08:11:48Z-
dc.date.available2023-04-24T08:11:48Z-
dc.date.issued2023-
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/9025-
dc.description.abstractModelling the response of seismic wavefields to sharp lateral variations in crustal discontinuities is essential for seismic tomography application and path effects correction in earthquake source characterization. This is particularly relevant when wavefields cross back-arc oceanic basins, i.e. mixed continental-oceanic settings. High-frequency (>0.05 Hz) seismic waves resonate and get absorbed across these settings due to a shallow Moho, crustal heterogeneities, and energy leakage. Here, we provide the first high-frequency wave-equation model of full seismograms propagating through realistic 3D back-arc basins. Inversion by parameters trial based on correlation analyses identifies P-, S- and coda-wave as attributes able to estimate jointly 3D Moho variations, sediment thickness, and earthquake source characteristics using data from a single regional earthquake. We use as data waveforms produced by the Accumoli earthquake (Central Italy, 2016), propagating across the Southern Tyrrhenian basin and recorded across Southern Italy. The best model comprises a deep Moho (∼ 18 km) in the middle of the basin and a crustal pinch with the continental crust in Sicily. The deep Moho corresponds to the Issel Bridge, a portion of continental crust trapped between the Vavilov and Marsili volcanic centres. The Accumoli earthquake is optimally described at a depth of 7.3 km using a boxcar with rise time of 6 s. Our results show that the early S-wave coda comprises trapped and reverberating phases sensitive to crustal interfaces. Forward modelling these waves is computationally expensive; however, adding these attributes to tomographic procedures allows modelling both source and structural parameters across oceanic basins.en_GB
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (DFG)|491381577|Open-Access-Publikationskosten 2022–2024 Universität Mainz - Universitätsmedizin-
dc.language.isoengde
dc.rightsCC BY*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subject.ddc550 Geowissenschaftende_DE
dc.subject.ddc550 Earth sciencesen_GB
dc.titleEarthquake characteristics and structural properties of the Southern Tyrrhenian basin from full seismic wave simulationsen_GB
dc.typeZeitschriftenaufsatzde
dc.identifier.doihttp://doi.org/10.25358/openscience-9008-
jgu.type.dinitypearticleen_GB
jgu.type.versionPublished versionde
jgu.type.resourceTextde
jgu.organisation.departmentFB 09 Chemie, Pharmazie u. Geowissensch.de
jgu.organisation.number7950-
jgu.organisation.nameJohannes Gutenberg-Universität Mainz-
jgu.rights.accessrightsopenAccess-
jgu.journal.titleSurveys in geophysicsde
jgu.journal.volumeVersion of Record (VoR)de
jgu.publisher.year2023-
jgu.publisher.nameSpringer Science + Business Media B.V.de
jgu.publisher.placeDordrecht u.a.de
jgu.publisher.issn1573-0956de
jgu.organisation.placeMainz-
jgu.subject.ddccode550de
jgu.publisher.doi10.1007/s10712-023-09769-wde
jgu.organisation.rorhttps://ror.org/023b0x485-
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